固相萃取-高效液相色谱法同时测定水中硝基苯酚的三种异构体

摘要

Tthree dinitrophenols in water was determined by SPE HPLC after the test condition was optimized.The linear relation was good,and detective limit of 4-nitrophenol was 0.5 μg/L,the 3-nitrophenol 0.8 μg/L and 2-nitrophenol 0.6 μg/L.The relative standard deviation was ≤5.6 % and average recovery was between 85.6 % and 94.0 %.%利用固相萃取-高效液相色谱法建立了对地表水中硝基苯酚三种异构体的同时测定的分析方法,方法线性良好,检出限为对硝基苯酚0.5μg/L,间硝基苯酚0.8μg/L,邻硝基苯酚0.6μg/L,RSD≤5.6%,平均加标回收率在85.6%~94.0%,实验证明该方法简单快速、准确实用。